Home / 132,103,123.20-198,153,423.90-80,302,031.15

Finding the Fourth Proportional to 132,103,123.20, 198,153,423.90 and 80,302,031.15

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Solution

The fourth proportional to 132,103,123.20, 198,153,423.90 and 80,302,031.15 is: 120,452,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,103,123.20 : 198,153,423.90 = 80,302,031.15 : x
  2. Step 2: Convert to fraction form
    132,103,123.20/198,153,423.90 = 80,302,031.15/x
  3. Step 3: Cross multiply
    132,103,123.20x = 198,153,423.90 × 80,302,031.15
  4. Step 4: Simplify right side
    132,103,123.20x = 15,912,122,417,506,188
  5. Step 5: Solve for x
    x = 15,912,122,417,506,188/132,103,123.20
  6. Step 6: Final answer
    x = 120,452,280.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.